they have been on for close to 2K miles now
still getting 5+ less mpg than normal
I had the shop air them up to 38 all around (they were 36F/34R I think)
the best I've seen on my 110 mile round trip to work since the new tires was 46mpg (normally about 49-51 everey trip (and 53-54 in the summer))

I personally think I'd probably go with a Bridgestone Ecopia EP422. Its what they have on the Leaf. But, I'd look at other EVs and high MPG cars for options as well.

I have these on mine. Very happy with them. I got mine at Costco and am able to get free nitro inflation and balancing.

It was funny because right off the bat the tire technicians recommended inflating them to 50psi, said they wear better at the higher psi than what the manufacturer recommended. I was surprised that they would do this but was glad I didn't have to top off after they finished my car. haha. "Hey wait why are you back? "

The techs at Costco, or at Bridgestone? I always heard over-inflated tires would wear the center of the treads. I kept my tires at 42 lbs/sq in. but my headlight bulbs kept popping off. Guess it was from the harsher ride. Better mileage, though.

..... I always heard over-inflated tires would wear the center of the treads. ......

Well, it's sort of true. There are things that have a greater effect on evenness of wear than inflation pressure, so it's not only hard to sort out what is causing a tire to wear unevenly, but it's also possible to get even wear in spite of over inflating the tires.